Exercise machine

ABSTRACT

An exercise machine comprises an oval-shaped structure, two driving arms, two swing handles and two slidable bars. With the above-mentioned embodiments, following benefits can be obtained, the fly wheel of the oval-shaped structure utilizes the assembling section to be connected an adjusting member, such that the movement strokes can be adjusted.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to an exercise machine having anoval-shaped mechanism, and more particularly to an oval-shaped mechanismhaving driving arms, which can provide a longer and variable stroke withrespect to the fly wheel.

2. Description of the Related Art

Currently, a prior art exercise machine, as shown in FIG. 27, comprises:an oval-shaped structure 50, two swing handles 60 and two slidable bars70. The oval-shaped structure 50 comprises a base 51 having a fly wheel52 and a standing rod 53 attached to a front end of the oval-shapedstructure 50. The fly wheel 52 has a shaft 521 extending from opposingsides of the flywheel and a pivoting shaft 531 extends from oppositesides of the standing rod 53. The two swing handles 60 respectively havea gripping portion 61, a linking arm 62 and a connecting tube 63jacketed onto the pivoting shaft 531 of the standing rod 53. The linkingarm 62 has an assembly portion 64 at an opposite end of the grippingportion 61. The slidable bars 70 each have a first pivoting portion 71for attachment onto the assembly portion 64 of the respective swinghandle 60, a second pivoting portion 72 with a ring for jacketing ontothe shaft 521 of the fly wheel 52, and a pedal 73 disposed on apredetermined position of each slidable bar 70. When the user wants tooperate the exercise machine, he or she stands on both of the pedals 73of the slidable bars 70 and holds both of the swing handles 60; byswinging both arms and stepping with both legs, the fly wheel 52provides a continuous movement and identically travelling strokes forthe swing handles 60 and the slidable bars 70.

However, the prior art exercise machine has the following drawback:since the second pivoting portion 72 with a ring is directly jacketedonto the shaft 521 of the fly wheel 52 and the first pivoting portion 71is attached onto the assembling portion 64 of the swing handle 60, theoval-shaped structure 50 has a travel stroke limited by the fly wheel 52such that the slidable bars 70 and the swing handles 60 have the sametravel stroke as the fly wheel 52.

Therefore, it is desirable to provide an exercise machine to mitigateand/or obviate the aforementioned problems.

SUMMARY OF THE INVENTION

An objective of the present invention is to provide an exercise machine,which can provide a longer and variable stroke with respect to the flywheel.

In order to achieve the above-mentioned objectives An exercise machinecomprises an oval-shaped structure, two driving arms, two swing handlesand two slidable bars. The oval-shaped structure comprises a base havinga fly wheel. The fly wheel has an assembling section eccentricallyextending from two opposing sides and a corresponding adjusting member.The adjusting member has an assembling portion for connecting to theassembling section of the fly wheel. The assembling section of the flywheel is a non-circular raised member, and the assembling portion of theadjusting member is an aperture with a corresponding shape. Theadjusting member is a circular disk or rectangular bracket. An outerside of the adjusting member has a protruding rod and a correspondingsliding sleeve, and the sliding sleeve has a limiting track. A standingrod is attached to a front end of the oval-shaped structure. The twodriving arms are respectively attached to two sides of the oval-shapedstructure. An end of each driving arm has a securing portion and anotherend has a first pivoting portion with a ring for assembly with thecorresponding adjusting member. The two swing handles are installed ontothe standing rod. Each swing handle has at least one positioning portionthat is disposed on the swing handle for coupling with the securingportion of the driving arms, and an assembling portion at a lower end ofthe swing handle. Each slidable bar is a long bracket narrower than thelimiting track of the sliding sleeve and respectively has a secondpivoting portion for attaching onto the assembling portion of therespective swing handle. A pedal is disposed at a predetermined positionon each slidable bar.

With the above-mentioned embodiments, following benefits can beobtained, the fly wheel of the oval-shaped structure utilizes theassembling section to be connected an adjusting member, such that themovement strokes can be adjusted.

Other objects, advantages, and novel features of the invention willbecome more apparent from the following detailed description when takenin conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is an exploded view of an embodiment of the present invention.

FIG. 3 shows another embodiment of an adjusting member according to thepresent invention.

FIG. 4 is a side view illustrating operation of an embodiment of thepresent invention.

FIG. 5 is a side view illustrating continuous movement of an embodimentof the present invention.

FIG. 6 is another side view illustrating continuous movement of anembodiment of the present invention.

FIG. 7 is another side view illustrating continuous movement anembodiment of the present invention.

FIG. 8 is an adjustment schematic drawing of an embodiment of thepresent invention.

FIG. 9 is another adjustment schematic drawing of an embodiment of thepresent invention.

FIG. 10 is another adjustment schematic drawing of an embodiment of thepresent invention.

FIG. 11 is a local detailed view of a fly wheel and an adjusting memberof an embodiment of the present invention.

FIG. 12 is an exploded view of an adjusting member with a passive rod ofan embodiment of the present invention.

FIG. 13 illustrates usage of an embodiment of the present invention.

FIG. 14 is another local detailed view of a fly wheel and an adjustingmember of an embodiment of the present invention.

FIG. 15 is a perspective view of a swing handle of an embodiment of thepresent invention.

FIG. 16 is a local detailed view of FIG. 15.

FIG. 17 is another perspective view of a swing handle of an embodimentof the present invention.

FIG. 18 is a local detailed view of FIG. 17.

FIG. 19 is another perspective view of a swing handle of an embodimentof the present invention.

FIG. 20 is a local detailed view of FIG. 19.

FIG. 21 is another perspective view of a swing handle of an embodimentof the present invention.

FIG. 22 is a local detailed view of FIG. 21.

FIG. 23 is a perspective view of another embodiment of the presentinvention.

FIG. 24 is an exploded view of another embodiment of the presentinvention.

FIG. 25 is a perspective view of another embodiment of the presentinvention.

FIG. 26 is a schematic drawing of another embodiment of the presentinvention.

FIG. 27 is a perspective view of a prior art device.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Please refer to FIG. 1 and FIG. 2. An exercise machine comprises anoval-shaped structure 10, two driving arms 20, two swing handles 30 andtwo slidable bars 40. The oval-shaped structure 10 comprises a base 11having a fly wheel 12. The fly wheel 12 has an assembling section 121eccentrically extending from two opposing sides and a correspondingadjusting member 13. The adjusting member 13 has an assembling portion131 for connecting to the assembling section 121 of the fly wheel 12.The assembling section 121 of the fly wheel 12 is a non-circular raisedmember, and the assembling portion 131 of the adjusting member 13 is anaperture with a corresponding shape. The adjusting member 13 is acircular disk or rectangular bracket as shown in FIG. 3. An outer sideof the adjusting member 13 has a protruding rod 132 and a correspondingsliding sleeve 14, and the sliding sleeve has a limiting track 141. Astanding rod 15 is attached to a front end of the oval-shaped structure10. The two driving arms 20 are respectively attached to two sides ofthe oval-shaped structure 10. An end of each driving arm 20 has asecuring portion 21 and another end has a first pivoting portion 22 witha ring for assembly with the corresponding adjusting member 13. The twoswing handles 30 are installed onto the standing rod 15. Each swinghandle has at least one positioning portion 31 that is disposed on theswing handle 30 for coupling with the securing portion 21 of the drivingarms 20, and an assembling portion 32 at a lower end of the swinghandle. Each slidable bar 40 is a long bracket narrower than thelimiting track 141 of the sliding sleeve 14 and respectively has asecond pivoting portion 41 for attaching onto the assembling portion 32of the respective swing handle 30. A pedal 42 is disposed at apredetermined position on each slidable bar 40.

For assembly, please refer to FIG. 1 and FIG. 2. The assembling portion131 of the adjusting member 13 jackets onto the assembling section 121of the fly wheel 12. Furthermore, the adjusting member 13 provides anadjustable stroke for the slidable bar 40 by adjusting a relativeposition between the protruding rod 132 and the fly wheel 12. Thedriving arms 20 are respectively attached to opposing sides of theoval-shaped structure 10, the first pivoting portions 22 at the rearends are pivoted onto the protruding rods 132 of the adjusting members13, and the protruding rods 132 are jacketed with the sliding sleeves 14for supporting the corresponding slidable bars 40. The two swing handles30 are also respectively coupled to two opposing sides of theoval-shaped structure 10 and secured onto the standing rod 15.Furthermore, the positioning portion 31 of the swing handle 30 issecured with the securing portion 21 of the driving arm 20. The twoslidable bars 40 are also respectively attached to two opposing sides ofthe oval-shaped structure 10, the second pivoting portions 41 arepivoted with the assembling portions 32 of the swing handles 30 and reston the sliding sleeve 14 jacketed onto the protruding rod 132 such thateach slidable bar 40 is limited by the corresponding limiting track 141.

For actual use, please refer to FIG. 4 with FIG. 5 to FIG. 7. A userstands on both of the pedals 43 of the slidable bars 40 and holds bothof the gripping portions 31 of the swing handles 30; the user thenswings both arms and employs a stepping motion with both legs. Thepivoting portion 22 of the driving arms 20 are jacketed onto theprotruding rod 132 of the adjusting member 13, while the securingportion 21 is mounted onto the positioning portion 31 of the swinghandle 30, such that each driving arm 20 is connected to both the flywheel 12 and the respective swing handle 30. The slidable bars 40utilize the second pivoting portion 41 for attaching onto the assemblingportions 32 of the swing handles 30, such that the slidable bars 40 anddriving arms 20 utilize different pivoting points for swinging movementsand both overlap the sliding sleeves 14 of the protruding rods 132 ofthe adjusting members 13; therefore, when the user steps with both feetand swings with both hands, with the free joints formed by the secondpivoting portions 41 of the slidable bars 40 and the assembling portions32 of the swing handles 30, the movements of the slidable bars 40 areextended by the sliding sleeve 14 of the protruding rod 132, such thatthe swing handles 30 and the slidable bars 40 are capable of havingtravel strokes that are different than the travel stroke of the flywheel 12. When the protruding rod 132 of the adjusting member 13 isdisposed on an inner side of the assembling section 121 of the fly wheel12, the protruding rod 132 rotates around with the assembling section121, having a smaller rotational movement than the rotational movementof the fly wheel 12. On the other hand, when the protruding rod 132 ofthe adjusting member 13 is disposed on an outer side of the assemblingsection 121 of the fly wheel 12, as shown in FIG. 8, the protruding rod132 rotates around with the assembling section 121 with a largerrotational movement than the rotational movement of the fly wheel 12. Inaddition, each adjusting member 13 provides an adjustable stroke for thecorresponding slidable bar 40 by adjusting a relative position betweenthe protruding rod 132 and the fly wheel 12, as shown in FIG. 9 and FIG.10.

An embodiment of a combination of the fly wheel 12 and the adjustingmember 13 is shown in FIG. 11. The assembling section 121 of the flywheel 12 is a rod, and the adjusting member 13 is a Z-shaped member. Theassembling portion 131 of the adjusting member 13 is a sleevecorresponding to the assembling section 121 for jacketing onto theassembling section 121 of the fly wheel 12. The first pivoting portion22 of the driving arm 20 is assembled with the assembling portion 131 ofthe adjusting member 13 and pivoted onto the assembling section of thefly wheel; and the protruding rod of the adjusting member is jacketedwith the sliding sleeve for supporting the slidable bar. The assemblingportion 131 is a sleeve corresponding to the assembling section 121 andused for jacketing onto the assembling section 121 of the fly wheel 12.The first pivoting portion 22 of the driving arm 20 is assembled withthe assembling portion 131 of the adjusting member 13 and pivoted ontothe assembling section 121 of the fly wheel 12. Moreover, the protrudingrod 132 of the adjusting member 13 is jacketed with the sliding sleeve14 for supporting the slidable bar 40.

Another embodiment of a combination of the fly wheel 12 and theadjusting member 13 is shown in FIG. 12 and FIG. 13. The adjustingmember 13 further has a passive rod 16, the passive rod 16 has a thirdpivoting portion 161 at a side for attaching onto the protruding rod 132of the adjusting member 13 and connecting to the first pivoting portion22 of the driving arm 20 and a connecting rod 162 at an opposite sidejacketed with the sliding sleeve 14 for supporting the slidable bar 40.The adjusting member provides an adjustable stroke for the slidable bar,and the different locations of the passive rod 16 on the adjustingmember 13 can also provide different adjustments.

Another embodiment of a combination the fly wheel 12 and the adjustingmember 13 is shown in FIG. 14. The assembling section 121 of the flywheel 12 is a threaded aperture, and the adjusting member 13 and thecorresponding assembling portion 131 of the assembling section 121 forma screw, such that the adjusting member 13 is screwed onto the fly wheel12.

For another embodiment of the exercise machine, please refer to FIG. 15and FIG. 16. A plurality of the positioning portions 31 are disposed ona side of each swing handle 30 such that the securing portion 21 of therespective driving arm 20 is adjustable for connection to any of thepositioning portions 31 of the linking arm 30.

For another embodiment of the driving arm 20 and the swing handle 30,please refer to FIG. 17 to FIG. 21. The positioning portion 31 furtherhas a positioning ring 311 and a positioning member 312; the positioningportion 31 is jacketed onto the swing handle 30 such that thepositioning portion 31 can freely move along the swing handle 30 withthe positioning ring 311, and the positioning member 312 attached ontothe swing handle 30 engages with the securing portion 21 of the drivingarm 20. The positioning member 312 is a quick-release member, a lockingmember or a tightening member, as shown in the respective figures.

For another embodiment of the exercise machine, please refer to FIG. 23and FIG. 24. A distance between the base 11 of the oval-shaped structure10 can be shortened, and the length of the slidable bars 40 can also beshortened corresponding to the oval-shaped structure 10 to reduce theentire size of the machine. Furthermore, please refer to FIG. 25 andFIG. 26. Another embodiment of the standing rod 15 and the swing handles30 is shown in FIG. 25, and an adjustment of the protruding rods 132 ofthe adjusting members 13 is shown in FIG. 26.

With the above-mentioned embodiments, following benefits can beobtained, the fly wheel 12 of the oval-shaped structure 10 utilizes theassembling section 121 to be connected an adjusting member 13, such thatthe movement strokes can be adjusted.

Although the present invention has been explained in relation to itspreferred embodiment, it is to be understood that many other possiblemodifications and variations can be made without departing from thespirit and scope of the invention as hereinafter claimed.

1. An exercise machine comprising: an oval-shaped structure comprising a base having a fly wheel, the fly wheel having an assembling section eccentrically extending from a plurality of sides and a corresponding adjusting member, the adjusting member having an assembling portion for connecting to the assembling section of the fly wheel, an outer side of the adjusting member having a protruding rod and a corresponding sliding sleeve, and a standing rod attached to a front end of the oval-shaped structure; a plurality of driving arms respectively attached to a plurality of sides of the oval-shaped structure, an end having a securing portion and another end having a first pivoting portion with a ring for assembly with the adjusting member; a plurality of swing handles installed onto the standing rod and at least one positioning portion disposed on the swing handles for securing the securing portion of the driving arms, and having an assembling portion at an lower end of the swing handle; and a plurality of slidable bars overlapping the sliding sleeve covering the protruding rod and respectively having a second pivoting portion for attaching onto the assembling portion of the respective swing handle, and a pedal disposed at a predetermined position on each slidable bar.
 2. The exercise machine as claimed in claim 1, wherein the assembling section of the fly wheel is a non-circular raised member, and the assembling portion of the adjusting member is an aperture with a corresponding shape.
 3. The exercise machine as claimed in claim 2, wherein the adjusting member is a circular disk.
 4. The exercise machine as claimed in claim 2, wherein the adjusting member is a rectangular bracket.
 5. The exercise machine as claimed in claim 1, wherein the driving arms are respectively attached to sides of the oval-shaped structure, the first pivoting portion at the rear end is pivoted onto the protruding rod of the adjusting member, and the protruding rod is jacketed with the sliding sleeve for supporting the slidable bar.
 6. The exercise machine as claimed in claim 5, wherein the adjusting member further has a passive rod, the passive rod having a third pivoting portion at a side for attaching onto the protruding rod of the adjusting member and connecting to the first pivoting portion of the driving arm and a connecting rod at an opposite side jacketed with the sliding sleeve for supporting the slidable bar.
 7. The exercise machine as claimed in claim 1, wherein the assembling section of the fly wheel is a rod, the adjusting member is a Z-shaped member; the assembling portion of the adjusting member is a sleeve corresponding to the assembling section for jacketing onto the assembling section of the fly wheel; the first pivoting portion of the driving arm is assembled with the assembling portion of the adjusting member and pivoted onto the assembling section of the fly wheel; and the protruding rod of the adjusting member is jacketed with the sliding sleeve for supporting the slidable bar.
 8. The exercise machine as claimed in claim 1, wherein the adjusting member provides an adjustable stroke for the slidable bar by adjusting a relative position between the protruding rod and the fly wheel.
 9. The exercise machine as claimed in claim 1, wherein the assembling section of the fly wheel is a threaded aperture, and the adjusting member and the corresponding assembling portion of the assembling section form a screw, such that the adjusting member is screwed onto the fly wheel.
 10. The exercise machine as claimed in claim 1, wherein the sliding sleeve has a limiting track, and the slidable bar is a long bracket narrower than the limiting track of the sliding sleeve such that the slidable bar is limited by the limiting track.
 11. The exercise machine as claimed in claim 1, wherein one side of the swing handle has a plurality of positioning portions, and the driving arm of the securing portion can be attached onto any one of the positioning portions of the swing handle.
 12. The exercise machine as claimed in claim 1, wherein the positioning portion further has a positioning ring and a positioning member, the positioning portion is jacketed onto the swing handle such that the positioning portion can freely move along the swing handle with the positioning ring, and the positioning member attached onto the swing handle engages with the securing portion of the driving arm.
 13. The exercise machine as claimed in claim 12, wherein the positioning member is a quick-release member, a locking member or a tightening member.
 14. The exercise machine as claimed in claim 1, wherein a distance between a base of the oval-shaped structure and the can be shortened, and the length of the slidable bar can also be shortened corresponding to the oval-shaped structure.
 15. The exercise machine as claimed in claim 1, wherein the driving arms are attached to respective sides of the oval-shaped structure, the first pivoting portion of each driving arm is pivoted onto the assembling portion and then again pivoted onto the assembling section of the fly wheel with the assembling portion of the adjusting member, and the protruding rod of the adjusting member has a corresponding sliding sleeve for supporting the slidable bar. 